baber/WOPTO huggingface dataset:
Patent JP-S6483893-A (JP)
Title: Variable pitch axial blower
Inventor: MASUDA YOSHITAKA
IPC: F04D29/36
Filed: 1987-09-28
Abstract: PURPOSE:To make a blade angle variable only when a hub cover is rotated by bringing an inner surface of the hub cover in contact with a front periphral surface of a hub free of rotation and slide motion, and inserting a pin of a blade root part into a hole of the hub cover free of rotation as well. CONSTITUTION:At the central part of a hub 1, there is provided with a boss part 4 which has a hole 3 into which a shaft 2 of an electric motor is inserted, and a plurally of holes 5 for blade mounting are formed in a peripheral side wall. A hub cover 8, inserting a bearing 7 into the center, is brought into contact with a front peripheral surface 6 of the hub 6 free of rotation so as to cause the inner surface 9 to be slidden. A blade 12 is rotatably attached to the hole 5 via a mounting clamp 11 having a bearing 10 at the inner part of the hub 1. In addition, a pin 14 is projectingly at the side of the hub 1 in a root part 13 of the blade 12, and this pin 14 is rotatably inserted into a hole installed on the circumference of the hub cover 8 at the same pitch as much as the same number as the blade 12.
Patent JP-S60136164-A (JP)
Title: Manufacture of sintered substrate for alkaline storage battery
Inventor: SEKIGUCHI HIDEO
IPC: H01M4/80
Filed: 1983-12-23
Abstract: PURPOSE:To increase bonding ability of a coated material and a core metal by spreading slurry on a core metal and drying, then again spreading dense slurry on its both sides and drying and sintering it. CONSTITUTION:Slurry 1' having high density prepared by mixing metal powder for sintering and 2-5% aqueous solution of organic binder at a ratio of about 1:1 is thinly spreaded on a core metal 2' comprising perforrated metal plate, and dried. The slurry 1' having low density and viscosity is again spreaded on the dried core metal. The slurry 1' penetrates to the surface of the core metal 2', and fine cracks produced in drying process are filled with the slurry 1'. The coated core metal is dried with an infrared lamp, and heated in an atmosphere of reducing gas at about 900 deg.C for 10min to form a substrate. By this process, bonding ability of coated material with the core metal is increased.
Patent JP-H01157230-A (JP)
Title: Parallel operation of ac generator
Inventor: FUKAO ISAO
IPC: H02J3/38
Filed: 1987-09-30
Abstract: PURPOSE:To keep operation even if one unit of generators is out of order or a great capacity induction generator is started, by setting the load capacity of each single machine to be less than a rated capacity, and by parallel- operating the smaller capacity synchronous-generators of two or fewer units and a plurality of induction generator units. CONSTITUTION:The output of the smaller capacity synchronous generators SG1 (the case of one unit is shown in the figure) of two or one unit and the output of a plurality of induction generator units IG2-4 are connected in parallel with each other, and power is fed to loads L6-8. The output of each generator is set to be lower than rated output, and power-factor improving capacitors C11-C14 are connected to. Via a breaker 5, a non-utility generation system can be connected to a power system. When one generator unit at least is out of order or the great starting current of the induction generators is generated, in the non-utility generation system, then residual generator output is increased to be the rated output. As a result, stable power is fed to the loads, and contract demand is prevented from being excessively generated.
Patent JP-H03106321-A (JP)
Title: Turbine nozzle of vacuum cleaner
Inventor: KITAMURA SHUSUKE
IPC: A47L9/04
Filed: 1989-09-20
Abstract: PURPOSE:To efficiently work a gear part for link-mounting a belt and to contrive the cost down of a turbine shaft with its workability and mass-productivity enhanced by providing a turbine shaft with a main shaft for holding a turbine wheel and an auxiliary shaft, having the belt link-mounting gear part concentrically secured to the main shaft in an end part opposite to a turbine wheel holding part of this main shaft. CONSTITUTION:As a main shaft 38 is rotatably supported by a bearing 37 very adjacently to an E ring 45, a distance from a supporting position to a work point of belt tension, acting on a timing belt 41, becomes almost 1/2 of the width of the timing belt 41, and bending moment by the belt tension is decreased, resulting in extremely reduced generation of rotational sliding noise and vibration in the supporting part of the bearing 37. By performing such works that a material, worked by drawing into the sectional shape of a gear part 42, is cut and lathe-turned to form an auxiliary shaft 40 which is press-fit to the main shaft 38 with a fall off stopped by a pin 39 to form a turbine shaft 35, the main shaft 38 and the auxiliary shaft 40 and first worked separately and finally integrated together, thus the work can be efficiently performed with mass-productivity of the turbine shaft 35 enhanced.
Patent JP-H0294477-A (JP)
Title: Semiconductor device and manufacture thereof
Inventor: HIEDA KATSUHIKO
IPC: H01L29/10
Filed: 1988-09-30
Abstract: PURPOSE:To make the higher integration feasible by a method wherein a gate electrode is provided in a groove of a one conductivity type semiconductor substrate and then an inverse conductivity type source.drain regions in high concentration are provided adjacent to the inverse conductivity type source.drain regions provided on the upper part of the groove on both sides of the gate electrode. CONSTITUTION:An n<-> type source.drain diffused layer 6 is formed on a MOSFET region isolated by element isolation insulating film 3 on a p<-> type Si substrate 1 to form a groove penetrating the diffused layer 5. A channel ion implanted layer 8 as a p type impurity layer is formed to be isolated from the diffused layer 5 on the bottom region of the groove. Besides, a gate insulating film 9 is formed as if covering the groove; furthermore, a gate electrode 10 is formed on the gate insulating film 9. Besides, an n<+> type source.drain diffused layer 12 in higher concentration than that of the source-drain diffused layer 5 is formed using the gate electrode 10 as a mask. Through these procedures, the short channel effect can be counteracted to augment the drain breakdown strength for attaining the higher integration.
Patent JP-H08108065-A (JP)
Title: Fuel reforming device
Inventor: MIURA YOSHIHARU
IPC: B01J19/00
Filed: 1994-10-07
Abstract: PURPOSE: To obtain a fuel reforming device having high efficiency by making a temp. distribution of combustion gas uniform and enhancing heat-transfer efficiency between the combustion gas and an inner cylinder. CONSTITUTION: In the fuel reforming device incorporating a reaction cylinder 3 having a hollow double structure consisting of an inner cylinder 4, an outer cylinder 5 and a middle cylinder 6 in a reforming device main body 1 having a lining of a heat insulating material 2, and provided with a combustion burner 16 for heating the reaction cylinder 3, a combustion gas cylinder 20 is provided with the combustion burner 16 successively and the combustion gas cylinder 20 is inserted from an opening of the reaction cylinder 3 into a space in the reaction cylinder and opened in the reaction cylinder.
Patent JP-S63100126-A (JP)
Title: Manufacture of hot rolled high tension steel for resistance welded steel pipe having superior workability
Inventor: MANO JUNICHI
IPC: C22C38/06
Filed: 1986-10-14
Abstract: PURPOSE:To obtain a steel having superior tensile strength, yield ratio and workability by rolling and coiling a steel slab consisting of specified amounts of C, Si, Mn, Al and Fe under prescribed conditions. CONSTITUTION:A steel consisting of, by weight, <=0.6% C, <=0.5% Si, <=2% Mn, <=0.05% Al and the balance Fe and satisfying relation represented by formula 97.6(%C)+11(%Si)+14.5(%Mn)>=52.4 is manufactured by refining. A slab of the steel is heated, rough-rolled and finish-rolled at 800-1,000 deg.C and 30-80% total draft with a tandem rolling mill having 3-5 stands. It is then water-cooled and coiled at 550-650 deg.C. Thus, a hot rolled high tension steel for a resistance welded steel pipe having >=5.5kg.f/mm<2> tensile strength, <=62% yield ratio, <=8mm thickness and superior workability is obtd.
Patent JP-H0559742-A (JP)
Title: Working device for construction
Inventor: TAKASU MOTOYUKI
IPC: E02F3/36
Filed: 1991-08-30
Abstract: PURPOSE:To save mechanical and man powers as well as raise safeness of construction by mechanizing the transporting and installing operations of construction materials such as stone blocks. CONSTITUTION:On the tip of an arm 5 attached in a tilting manner to the upper slewing part 2 of a freely movable base machine A, a pair of grasp claws 14 and 15 to be turned and opened by oil pressure are attached through a detachable tool B, Also, a pallet 18 is detachably attached to a blade 17 attached to the front of the lower traveler 1 of the base machine A.
Patent JP-H0293508-A (JP)
Title: Focus adjusting device
Inventor: KAWAI TORU
IPC: G02B7/04
Filed: 1988-09-30
Abstract: PURPOSE:To obtain a lightweight focus adjusting device which is free from an irregularity in torque and performs smooth operation by constituting a helicoid screw part which differs in screw diameter orthogonally to an in-phase angle direction from rotation transmission members provided at two opposite positions of a moving ring. CONSTITUTION:The moving ring 12 holds a focusing lens L2 and has the helicoid screw part 12a at its external-diameter part so as to engages the internal- diameter part of a main body lens barrel threadably, and cut parts 12b and 12c are formed in the direction of an optical axis at two opposite positions symmetrically about the optical axis to constitute the rotation transmission parts to which a rotation transmission arm engages. The helicoid screw part 12a is formed in the shape of an elliptic screw which has a major diameter (a) and a minor diameter (b) orthogonally to the in-phase angle direction about the cut parts 12b and 12c. Thus, the helicoid part 12a of the moving ring 12 is formed in the shape of the elliptic screw to prevent a torque increase nearly without reducing the contact area of the internal-diameter part of the main body lens barrel about the helicoid screw.
Patent JP-H0992713-A (JP)
Title: Substrate cassette
Inventor: SAIGOU TAKAAKI
IPC: B65G1/00
Filed: 1995-09-22
Abstract: PROBLEM TO BE SOLVED: To obtain a substrate cassette which can be assembled easily and accurately and the supporting part on the unprocessed surface of the substrate is not abraded. SOLUTION: The substrate cassette comprises a plurality of pairs of supporting member 2 each provided in parallel with upper and lower frame bodies 1b and grooves 9 for holding substrates 4 by shelf pieces 8 provided at a constant interval. The supporting member 2 is fixed to the side face of frame body 1b with the shelf piece 8 facing inward thus constituting a wafer cassette where a fixed groove 15 having U-shaped plan view is made in the side face of upper and lower frame body 1b. Parts to be fitted in the fixed groove are provided at the opposite ends of supporting member 2 and an inclining face bulging toward the forward end is provided on the surface at the fixing part.  An inclining face 16 is provided on the inner face of fixed groove and the fitting part of supporting member 2 is fitted in the fixed groove of frame body 1b such that the inclining faces are jointed each other and then the frame body 1 and supporting member 2 are tightened by means of a bolt and assembled.
Patent JP-H0798151-A (JP)
Title: Hot-water supply apparatus
Inventor: TSURUTA TORU
IPC: F24H1/00
Filed: 1993-09-30
Abstract: PURPOSE:To quantitatively control the heating in such a manner as, during heating of the water in a bathtub by an additional-heating heat exchanger, to make the temperature of a heat exchanger for hot water supply approach an objective point so as to heat up the bathwater quickly. CONSTITUTION:An amount-of-heating-controlling means 109 inputs an amount of heating F to a heating part-selecting means 110 and a proportional valve-controlling means 113. The heating part-selecting means 110 selects either single combustion or simultaneous combustion by comparing, on condition that a temperature elevation- detecting means 103 does not detect the heated state, the amount of heating F with the minimum valve opening of the proportional valve in the case of simultaneous combustion. According to this selection, switch valvecontrolling means 111, 112 respectively control switch valves. To obtain heating by the amount of heating F in accordance with the selected mode of either single combustion or simultaneous combustion the proportional valve-controlling means 113 controls the valve opening of the proportional valve. As a result, while the bathwater is being heated by the additional-heating heat exchanger, the amount of heating of the hot-water supply heat exchanger can be made much larger within the limitation of keeping the stagnant water therein from the boil. This method enables heating up the bathwater quickly.
Patent JP-H03106052-A (JP)
Title: Manufacture of semiconductor chip
Inventor: YAMADA SERIAKI
IPC: H01L21/304
Filed: 1989-09-20
Abstract: PURPOSE:To enable a semiconductor chip of this design to be improved in reliability and easily manufactured by a method wherein the separated face and the cut ridge line of the semiconductor chip are beveled and the burrs and micro-cracks are removed by a sonic sifter. CONSTITUTION:Semiconductor chips 1, which are separated from a wafer by cutting and have been subjected to a cleaning process in which paste applied onto the rear of a semiconductor chip is removed, are fed to a first sifter 14, and when a sonic source is made to start operating, the semiconductor chips 1 are vibrated on the first sifter 14 by the vertical vibration of the sonic source and hit not only the sifter 14 but also each other. The separated planes, the cut edges, the burrs, and the micro-cracks of the semiconductor chips 1 are cut off and dropped down to a second sifter 15 which is located below the first sifter 14 and whose mesh size is smaller than that of the first sifter 14. By this setup, a semiconductor chip can be improved in reliability and easily manufactured.
Patent JP-2000075674-A (JP)
Title: Image forming device
Inventor: HIROSHIMA KOICHI
IPC: G03G15/16
Filed: 1998-08-31
Abstract: PROBLEM TO BE SOLVED: To enable not only toner left at an intermediate transfer body but also the toner attached to a contact type electrification means to be surely recovered by attaching and detaching the intermediate transfer body with respect to the contact type electrification means outside an image area and specifying relation among the contact time of the contact type electrification means with the intermediate transfer body, an image forming cycle with respect to the intermediate transfer body and the like. SOLUTION: A cleaning and electrifying roller is made to abut and separated in the non-image area of the intermediate transfer body. Besides, the on/off of cleaning bias is adjusted. Then, when the contact time of the cleaning and electrifying roller with the intermediate transfer body is defined as Tc, the image forming cycle with respect to the intermediate transfer body is defined as Tp and the bias applying time to the cleaning and electrifying roller brought into contact with the intermediate transfer body is defined as Tb, the relation of Tp < Tb < Tc is obtained. Thus, the toner discharged to the intermediate transfer body immediately after the cleaning and electrifying roller is brought into contact with the intermediate transfer body is electrified after one cycle.
Patent JP-2000076268-A (JP)
Title: Device and method for retrieving image, and computer readable memory
Inventor: YAMAMOTO KUNIHIRO
IPC: G06F17/30
Filed: 1998-08-31
Abstract: PROBLEM TO BE SOLVED: To quickly reflect user's intention and to efficiently perform image retrieval by calculating the image feature value of an inputted image and calculating image similarity based thereon. SOLUTION: A user plots an illustration being a retrieval condition imitating desired image data being a retrieval object to be stored on a hard disk device 106 on a display part 103 with a pointing device 102a. The image feature value of the plotted illustration is calculated. Similar image retrieval is carried out based on the image feature value. A retrieved similar image is shown on the part 103. Thus, the plotting of an illustration by the user and retrieval and display processing can be performed parallelly. In other words, the processing speed of drawing an illustration is prevented from falling extremely and the user can continue the plotting of the illustration without feeling stress.
Patent JP-H04124830-A (JP)
Title: Semiconductor device
Inventor: TAKAHASHI TAKESHI
IPC: H01L21/331
Filed: 1990-09-14
Abstract: PURPOSE:To obtain a semiconductor device having hetero-bipolar transistor structure, in which trough transition in a collector region is inhibited while no trouble point is generated, by forming the collector region having a first region containing InP and a base region having a second region containing GaSb. CONSTITUTION:A collector region with a first region 1 containing InP and a base region with a second region 2 containing GaSb, being arranged adjacent to the first region 1 and forming a hetero-junctin with the first region 1 are formed. An i-type InP region 12 is epitaxial-grown on a semi-insulating InP substrate 11 as a buffer layer, and a lattice-matched n<+> type InGaAs region 13 is epitaxial-grown on the region 12 as the contact layer of the collector region. An n-type InP collector region 14 is epitaxial-grown on the region 13, and a lattice-matched p<+> type GaAsSb base region 15 is epitaxial-grown on the region 14. An n-type InAlAs emitter region 16, etc., lattice-matched with InP are grown on the base region 15.
Patent JP-H0560170-A (JP)
Title: Liquid seal vibration isolator
Inventor: SHIMODA SADAKI
IPC: B60K5/12
Filed: 1991-08-29
Abstract: PURPOSE:To provide a vibration isolator which has a low manufacturing cost and excellent durability. CONSTITUTION:A main liquid room A, which is formed with a thick rubber vibration isolator 1 as a room wall to support a vibration element, is partitioned from an auxiliary liquid room B by a partition plate 3 on which a throttle flow passage 31 is formed. A connection member 2 is provided on the top face of the rubber vibration isolator 1 to connect the vibration element and the cylinder plate 23 thereof is projected into the main liquid room. The projected cylinder plate has the lower end 21 transformed with the diameter enlarged in horizontal and formed as a stirring plate P. The stirring plate which is complete with the cylinder plate requires no labor for assembly to another and lowers cost. A distortion collective section 1a is pre-compressed when the stirring plate is formed with the diameter enlarged, therefore improves the durability of a vibration isolator.
Patent JP-H01121599-A (JP)
Title: Radial discharge centrifugal compressor
Inventor: FURETSUDO SHIDORANSUKII
IPC: F04D29/44
Filed: 1988-09-30
Abstract: PURPOSE: To minimize losses in a diffuser by means of a plurality of vanes with at least vanes of a first stage having shapes configured as supercritical airfoils. CONSTITUTION: An annular diffuser 26 is interposed between an impeller 10 and a collector 20. The diffuser 26 comprises diffuser vanes 30 of a first stage disposed at radially inner side adjacent to discharge ends 18 of blades 16 of the impeller 10, and diffuser vanes 32 of a second stage arranged radially outer of the diffuser vanes 30 of a first stage and aligned with corresponding diffuser vanes 30 of a first stage. The diffuser vanes 30 have shapes configured as supercritical airfoils.
Patent JP-H03107526-A (JP)
Title: Intake port structure for engine
Inventor: NAKAGAWA TADASHI
IPC: F02B31/02
Filed: 1989-09-20
Abstract: PURPOSE:To reduce intake air resistance by forming branch intake ports plurally connected to each combustion chamber in such a way as to have rectilinear parts extended with the specified inclination to the plane including the opened faces in the downstream side end parts. CONSTITUTION:In branch intake ports 22A, 22B formed at a cylinder head 12 in such a way as to be opened to each combustion chamber 14, the respective downstream side end parts are independently opened to the combustion chamber 14, whereas the upstream side parts are joined to be connected to an intake passage 24. The respective branch intake ports 22A, 22B are rectilinearly extended with the specified angle thetaB to the upstream side end faces in valve sheets 32a, 32b at the parts down to the vicinity of the respective downstream side end parts from the branch point 36 of both intake ports 22A, 22B and formed into curves at the parts from the vicinity of the respective downstream side end parts to the downstream side end parts. In addition, the angle thetaV is, for instance, selected to be 90 deg., and the respective branch intake ports are formed to satisfy the relation of thetaV<thetaL<thetaU.
Patent JP-H0992390-A (JP)
Title: Wire remote controller
Inventor: FUJIKI JIRO
IPC: H01R13/64
Filed: 1995-09-22
Abstract: PROBLEM TO BE SOLVED: To ensure the electrical connection between electrical circuit boards in casings and a signal line from the outside of the casings and facilitate the connecting work by providing a specific conduction section in an intra-casing space section formed via the assembling of multiple split casings. SOLUTION: An electrical circuit board 5 for a wire remote controller is stored in an intra-casing space section formed via the assembling of multiple split casings, and the signal output section of the circuit board is connected to a signal line L guided from the outside of the casings to form this wire remote controller. The wire remote controller is constituted of the electrical circuit board 5 fixed to one casing 3, the signal line L fixed to the other casing 4, and a conduction section J (preferably made of a male/female engaging connector C) inserted between the signal output section of the electrical circuit board 5 and the signal line L to connect them when assembling and joining them in the casings 3, 4.
Patent JP-H08110406-A (JP)
Title: Optical multilayered film
Inventor: UCHIDA SHINJI
IPC: G02B5/30
Filed: 1994-10-11
Abstract: PURPOSE: To produce optical parts small in size, light in weight and at a low cost by forming a multilayered thin film comprising two kinds of materials on a substrate in such a manner that one or more thin film layers are optically anisotropic thin films. CONSTITUTION: First a Ta2 O5 film 12 is formed as an anisotropic thin film having high refractive index on a lithium niobate substrate 11. The thin film 12 thus formed is not an isotropic thin film but a thin film having an oblique columnar structure, namely an anisotropic thin film having different refractive indices in the longitudinal direction and in the transverse direction of the film. Then a thin film having low refractive index such as a MgF2 film 13 is formed on the Ta2 O5 film 12 by vacuum vapor deposition. By forming a two-layer structure of the optically anisotropic Ta2 O5 film 12 and the MgF2 film 13 or a SiO2 film, a thin film phase 7 difference plate having both of the antireflection effect and a function as a λ/4 wavelength plate is obtd.